单选题What does a broad-spectrum interferer lower？（）A SNRB noise floorC level of interferenceD Received Signal Strength Indicator

题目
单选题
What does a broad-spectrum interferer lower？（）
A

SNR

B

noise floor

C

level of interference

D

Received Signal Strength Indicator

相似考题

1.In the OSNR model for EDFA amplifiers, SNR OUT = 1／(1／SNR IN ＋ FhvB／P IN ), what does SNR IN represent?()A. the signal to noise of the current optical amplifierB. the signal to noise of the previous amplifier or sourceC. the signal to noise introduced by the optical multiplexerD. the accumulated noise to signal ratio of the optical channel

2.You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in the best phone communication with an access point?()A. signal strength 5dBmB. signal strength 6dBmC. noise level 4dBmD. noise level 5dBm

3.什么是RSRP?()A.The received power on the resource elements that carry cell-specific reference signalsB.wideband powerC.N times the Reference Signal Received Power divided by the total received power in the channel bandwidthD.Signal to Interference plus Noise Ratio

4.What is an advantage of an externally modulated laser over a directly modulated laser?()A. lower costB. higher chirpC. easier to manufactureD. higher dispersion toleranceE. higher optical signal-to-noise ratio

更多“单选题What does a broad-spectrum interferer lower？（）A SNRB noise floorC level of interferenceD Received Signal Strength Indicator”相关问题

  • 第1题：

    The AirMagnet passive site survey tool can provide RF coverage data， except for which parameter？（）

    • A、Signal strength （4th access point）
    • B、Signal strength （3rd access point）
    • C、Channel interference
    • D、Predictive physical data rate downlink （2nd access point）

    正确答案:A

  • 第2题：

    In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）

    • A、the signal to noise of the current optical amplifier
    • B、the signal to noise of the previous amplifier or source
    • C、the signal to noise introduced by the optical multiplexer
    • D、the accumulated noise to signal ratio of the optical channel

    正确答案:B

  • 第3题：

    RSSI是Received Signal Strength Indicator的英文缩写。


    正确答案:正确

  • 第4题：

    Which signal and noise values will result in the best phone communication with an access point？（）

    • A、 Signal strength 0dBm， noise level 6dBm
    • B、 Signal strength 8dBm， noise level 9dBm
    • C、 Signal strength 4 dBm， noise level 4 dBm
    • D、 Signal strength 6dBm， noise level 5 dBm

    正确答案:A

  • 第5题：

    Which statement best describes the Cisco 2700 Location Appliance collection of location information for wireless devices?（）

    • A、all Wi-Fi devices on the WLAN send directly received signal strength indication （RSSI） information to the Cisco Wireless Location Appliance through SNMP
    • B、an AP collects RSSI information which is forwarded to wireless controllers through LWAPP. Wireless controllers forward aggregated RSSI to the location appliance through SNMP
    • C、the APs collect received signal strength indication （RSSI） information from all Wi-Fi devices and forward the information to the Cisco Wireless Location Appliance through the LWAPP
    • D、the Cisco WLAN controllers bypass the received signal strength indication （RSSI） information from all Wi-Fi devices to the Cisco Wireless Location Appliance through the LWAPP

    正确答案:B

  • 第6题：

    You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in thebest phone communication with an access point？（）

    • A、 signal strength 5dBm
    • B、 signal strength 6dBm
    • C、 noise level 4dBm
    • D、 noise level 5dBm

    正确答案:B,D

  • 第7题：

    判断题
    RSSI是Received Signal Strength Indicator的英文缩写。
    A

    对

    B

    错


    正确答案： 错
    解析： 暂无解析

  • 第8题：

    单选题
    什么是RSRP？（）
    A

    The received power on the resource elements that carry cell-specific reference signals

    B

    wideband power 

    C

    N times the Reference Signal Received Power divided by the total received power in the channel bandwidth 

    D

    Signal to Interference plus Noise Ratio


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    What is an advantage of an externally modulated laser over a directly modulated laser？ （）
    A

     lower cost

    B

     higher chirp

    C

     easier to manufacture

    D

     higher dispersion tolerance

    E

     higher optical signal-to-noise ratio


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）
    A

    the signal to noise of the current optical amplifier

    B

    the signal to noise of the previous amplifier or source

    C

    the signal to noise introduced by the optical multiplexer

    D

    the accumulated noise to signal ratio of the optical channel


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    As an experienced technician， you are responsible for Technical Support. A customer calls to askthe best signal level and noise level for cell phone. How to respond？（）
    A

     -40dBm signal and -90dBm noise

    B

     -50dBm signal and -90dBm noise

    C

     -30dBm signal and -90dBm noise

    D

     -20dBm signal and -90dBm noise


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases?（）.
    A

    In the lower level of the pumproom

    B

    In the middle level of the pumproom

    C

    In the upper level of the pumproom

    D

    On the deck outside the pumproom


    正确答案： B
    解析： 暂无解析

  • 第13题：

    What does a broad-spectrum interferer lower？（）

    • A、SNR
    • B、noise floor
    • C、level of interference
    • D、Received Signal Strength Indicator

    正确答案:A

  • 第14题：

    What is an advantage of an externally modulated laser over a directly modulated laser?（）

    • A、lower cost
    • B、higher chirp
    • C、easier to manufacture
    • D、higher dispersion tolerance
    • E、higher optical signal-to-noise ratio

    正确答案:D

  • 第15题：

    什么是RSRP？（）

    • A、The received power on the resource elements that carry cell-specific reference signals
    • B、wideband power 
    • C、N times the Reference Signal Received Power divided by the total received power in the channel bandwidth 
    • D、Signal to Interference plus Noise Ratio

    正确答案:A

  • 第16题：

    As an experienced technician, you are responsible for Technical Support. A customer calls to ask the best signal level and noise level for cell phone. How to respond?（）

    • A、-40dBm signal and -90dBm noise
    • B、-50dBm signal and -90dBm noise
    • C、-30dBm signal and -90dBm noise
    • D、-20dBm signal and -90dBm noise

    正确答案:A

  • 第17题：

    Which signal and noise values will result in the best phone communication with an access point?（）

    • A、signal strength 46dBm, noise level 95dBm
    • B、signal strength 74dBm, noise level 94dBm
    • C、signal strength 68dBm, noise level 79dBm
    • D、signal strength 50dBm, noise level 56dBm

    正确答案:A

  • 第18题：

    单选题
    Which signal and noise values will result in the best phone communication with an access point?（）
    A

    signal strength 46dBm, noise level 95dBm

    B

    signal strength 74dBm, noise level 94dBm

    C

    signal strength 68dBm, noise level 79dBm

    D

    signal strength 50dBm, noise level 56dBm


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Which statement best describes the Cisco 2700 Location Appliance collection of location information for wireless devices?（）
    A

    all Wi-Fi devices on the WLAN send directly received signal strength indication （RSSI） information to the Cisco Wireless Location Appliance through SNMP

    B

    an AP collects RSSI information which is forwarded to wireless controllers through LWAPP. Wireless controllers forward aggregated RSSI to the location appliance through SNMP

    C

    the APs collect received signal strength indication （RSSI） information from all Wi-Fi devices and forward the information to the Cisco Wireless Location Appliance through the LWAPP

    D

    the Cisco WLAN controllers bypass the received signal strength indication （RSSI） information from all Wi-Fi devices to the Cisco Wireless Location Appliance through the LWAPP


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    Which signal and noise values will result in the best phone communication with an access point？（）
    A

     Signal strength 0dBm， noise level 6dBm

    B

     Signal strength 8dBm， noise level 9dBm

    C

     Signal strength 4 dBm， noise level 4 dBm

    D

     Signal strength 6dBm， noise level 5 dBm


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Which value is NOT supported by Cisco Spectrum Expert， when checking for RF coverage？（）
    A

    Access point received-signal strength level

    B

    Spectrum utilization

    C

    Client data rate

    D

    In-band radio frequency interference


    正确答案： C
    解析： 暂无解析

  • 第22题：

    多选题
    You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in the best phone communication with an access point?（）
    A

    signal strength 5dBm

    B

    signal strength 6dBm

    C

    noise level 4dBm

    D

    noise level 5dBm


    正确答案： D,C
    解析： 暂无解析

  • 第23题：

    单选题
    In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ），  what does SNR IN represent？（）
    A

     the signal to noise of the current optical amplifier

    B

     the signal to noise of the previous amplifier or source

    C

     the signal to noise introduced by the optical multiplexer

    D

     the accumulated noise to signal ratio of the optical channel


    正确答案： D
    解析： 暂无解析

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